# WARNING: DO NOT EDIT, THIS FILE IS PROBABLY A COPY
#
# The original version of this file is located in the https://github.com/istio/common-files repo.
# If you're looking at this file in a different repo and want to make a change, please go to the
# common-files repo, make the change there and check it in. Then come back to this repo and run
# "make update-common".

service:
  # When updating this, also update the version stored in docker/build-tools/Dockerfile in the istio/tools repo.
  golangci-lint-version: 1.56.x # use the fixed version to not introduce new linters unexpectedly
run:
  # timeout for analysis, e.g. 30s, 5m, default is 1m
  deadline: 20m
  build-tags:
    - integ
    - integfuzz
  # which dirs to skip: they won't be analyzed;
  # can use regexp here: generated.*, regexp is applied on full path;
  # default value is empty list, but next dirs are always skipped independently
  # from this option's value:
  #   	vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
  skip-dirs:
    - genfiles$
    - vendor$
  # which files to skip: they will be analyzed, but issues from them
  # won't be reported. Default value is empty list, but there is
  # no need to include all autogenerated files, we confidently recognize
  # autogenerated files. If it's not please let us know.
  skip-files:
    - ".*\\.pb\\.go"
    - ".*\\.gen\\.go"
linters:
  disable-all: true
  enable:
    - errcheck
    - exportloopref
    - depguard
    - gocritic
    - gofumpt
    - goimports
    - revive
    - gosimple
    - govet
    - ineffassign
    - lll
    - misspell
    - staticcheck
    - stylecheck
    - typecheck
    - unconvert
    - unparam
    - unused
    - gci
    - gosec
  fast: false
linters-settings:
  errcheck:
    # report about not checking of errors in type assertions: `a := b.(MyStruct)`;
    # default is false: such cases aren't reported by default.
    check-type-assertions: false
    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    # default is false: such cases aren't reported by default.
    check-blank: false
  govet:
    # report about shadowed variables
    check-shadowing: false
  goimports:
    # put imports beginning with prefix after 3rd-party packages;
    # it's a comma-separated list of prefixes
    local-prefixes: istio.io/
  maligned:
    # print struct with more effective memory layout or not, false by default
    suggest-new: true
  misspell:
    # Correct spellings using locale preferences for US or UK.
    # Default is to use a neutral variety of English.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    locale: US
    ignore-words:
      - cancelled
  lll:
    # max line length, lines longer will be reported. Default is 120.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
    line-length: 160
    # tab width in spaces. Default to 1.
    tab-width: 1
  revive:
    ignore-generated-header: false
    severity: "warning"
    confidence: 0.0
    error-code: 2
    warning-code: 1
    rules:
      - name: blank-imports
      - name: context-keys-type
      - name: time-naming
      - name: var-declaration
      - name: unexported-return
      - name: errorf
      - name: context-as-argument
      - name: dot-imports
      - name: error-return
      - name: error-strings
      - name: error-naming
      - name: increment-decrement
      - name: var-naming
      - name: package-comments
      - name: range
      - name: receiver-naming
      - name: indent-error-flow
      - name: superfluous-else
      - name: modifies-parameter
      - name: unreachable-code
      - name: struct-tag
      - name: constant-logical-expr
      - name: bool-literal-in-expr
      - name: redefines-builtin-id
      - name: imports-blacklist
      - name: range-val-in-closure
      - name: range-val-address
      - name: waitgroup-by-value
      - name: atomic
      - name: call-to-gc
      - name: duplicated-imports
      - name: string-of-int
      - name: defer
        arguments:
          - - "call-chain"
      - name: unconditional-recursion
      - name: identical-branches
        # the following rules can be enabled in the future
        # - name: empty-lines
        # - name: confusing-results
        # - name: empty-block
        # - name: get-return
        # - name: confusing-naming
        # - name: unexported-naming
        # - name: early-return
        # - name: unused-parameter
        # - name: unnecessary-stmt
        # - name: deep-exit
        # - name: import-shadowing
        # - name: modifies-value-receiver
        # - name: unused-receiver
        # - name: bare-return
        # - name: flag-parameter
        # - name: unhandled-error
        # - name: if-return
  unused:
    # treat code as a program (not a library) and report unused exported identifiers; default is false.
    # XXX: if you enable this setting, unused will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find funcs usages. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    check-exported: false
  unparam:
    # call graph construction algorithm (cha, rta). In general, use cha for libraries,
    # and rta for programs with main packages. Default is cha.
    algo: cha
    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
    # XXX: if you enable this setting, unparam will report a lot of false-positives in text editors:
    # if it's called for subdir of a project it can't find external interfaces. All text editor integrations
    # with golangci-lint call it on a directory with the changed file.
    check-exported: false
  gci:
    sections:
      - standard # Captures all standard packages if they do not match another section.
      - default # Contains all imports that could not be matched to another section type.
      - prefix(istio.io/) # Groups all imports with the specified Prefix.
  gocritic:
    enabled-checks:
      - appendCombine
      - argOrder
      - assignOp
      - badCond
      - boolExprSimplify
      - builtinShadow
      - captLocal
      - caseOrder
      - codegenComment
      - commentedOutCode
      - commentedOutImport
      - defaultCaseOrder
      - deprecatedComment
      - docStub
      - dupArg
      - dupBranchBody
      - dupCase
      - dupSubExpr
      - elseif
      - emptyFallthrough
      - equalFold
      - flagDeref
      - flagName
      - hexLiteral
      - indexAlloc
      - initClause
      - methodExprCall
      - nilValReturn
      - octalLiteral
      - offBy1
      - rangeExprCopy
      - regexpMust
      - sloppyLen
      - stringXbytes
      - switchTrue
      - typeAssertChain
      - typeSwitchVar
      - typeUnparen
      - underef
      - unlambda
      - unnecessaryBlock
      - unslice
      - valSwap
      - weakCond
      # Unused
      # - yodaStyleExpr
      # - appendAssign
      # - commentFormatting
      # - emptyStringTest
      # - exitAfterDefer
      # - ifElseChain
      # - hugeParam
      # - importShadow
      # - nestingReduce
      # - paramTypeCombine
      # - ptrToRefParam
      # - rangeValCopy
      # - singleCaseSwitch
      # - sloppyReassign
      # - unlabelStmt
      # - unnamedResult
      # - wrapperFunc
  depguard:
    rules:
      DenyGogoProtobuf:
        files:
          - $all
        deny:
          - pkg: github.com/gogo/protobuf
            desc: "gogo/protobuf is deprecated, use golang/protobuf"
  gosec:
    includes:
      - G401
      - G402
      - G404
issues:
  # List of regexps of issue texts to exclude, empty list by default.
  # But independently from this option we use default exclude patterns,
  # it can be disabled by `exclude-use-default: false`. To list all
  # excluded by default patterns execute `golangci-lint run --help`
  exclude:
    - composite literal uses unkeyed fields
  exclude-rules:
    # Exclude some linters from running on test files.
    - path: _test\.go$|^tests/|^samples/
      linters:
        - errcheck
        - maligned
    - path: _test\.go$
      text: "dot-imports: should not use dot imports"
    # We need to use the deprecated module since the jsonpb replacement is not backwards compatible.
    - linters:
        - staticcheck
      text: "SA1019: package github.com/golang/protobuf/jsonpb"
    - linters:
        - staticcheck
      text: 'SA1019: "github.com/golang/protobuf/jsonpb"'
  # Independently from option `exclude` we use default exclude patterns,
  # it can be disabled by this option. To list all
  # excluded by default patterns execute `golangci-lint run --help`.
  # Default value for this option is true.
  exclude-use-default: true
  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
  max-per-linter: 0
  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
  max-same-issues: 0
